diff --git a/app-forensics/openscap/openscap-9999.ebuild b/app-forensics/openscap/openscap-9999.ebuild
index 159215b09fc43..eec19d6567643 100644
--- a/app-forensics/openscap/openscap-9999.ebuild
+++ b/app-forensics/openscap/openscap-9999.ebuild
@@ -88,6 +88,8 @@ src_prepare() {
 
 	if [[ "${PV}" == "9999" ]];
 	then
+		# fix automake failure about missing 'config/config.rpath'
+		touch config/config.rpath
 		eautoreconf
 	fi